High-speed imaging of high pressures produced by cavitation bubbles

O. Supponen, D. Obreschkow, M. Farhat

Research output: Chapter in Book/Conference paperConference paper

2 Citations (Scopus)

Abstract

Cavitation bubbles, when correctly tuned, may provide interesting mechanical and chemical effects to their surroundings owing to their violent collapse. Such an event may produce high-speed liquid jetting, extreme heating, as well as pressures of thousands of atmospheres. These phenomena are responsible for the severe erosion harming hydraulic machinery, but they also present interesting traits to harness in cleaning, sonochemistry, biomedical applications, among others. Here, we present experimental observations on the high pressures produced by spherically collapsing cavitation bubbles. Filming at 10 million frames/s allows for the disclosure of details on the high pressures (kbar-level) in the liquid near the bubble in its final collapse stages that precede the shock wave emission, confirming the century-old prediction of Lord Rayleigh.

Original languageEnglish
Title of host publication32ND INTERNATIONAL CONGRESS ON HIGH-SPEED IMAGING AND PHOTONICS
EditorsM Versluis, E Stride
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Number of pages6
Volume11051
DOIs
Publication statusPublished - 2019
Event32nd International Congress on High-Speed Imaging and Photonics (ICHSIP) - Enschede, Netherlands
Duration: 8 Oct 201812 Oct 2018

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume11051
ISSN (Print)0277-786X

Conference

Conference32nd International Congress on High-Speed Imaging and Photonics (ICHSIP)
CountryNetherlands
CityEnschede
Period8/10/1812/10/18

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